family hub是什么意思

family hub家庭浴缸双语例句1Mr. Mandela was the first in his family to attend school and eventually began working toward a law degree in Johannesburg, a bustling commercial hub.曼德拉是他的家庭中第一个有机会上学的人，并最终在南非繁华的商业中心约翰内斯堡开始攻读法学学位。